The big performance gains for XP occurs at steps from...
64MB to 128MB
128MB to 256MB or 512MB
And then it starts to not pay off much from 512MB to 1GB and from 1 to 2GB you barely notice the step up.
I own a ASUS A8N-E motherboard with 1 GB RAM, a 120 GB Hard Disk, an AMD 3200+ Athlon 64 processor and a PowerColor ATi 128MB X300 PCI-Express graphic card, running Windows XP SP2
Problem 1) - I recently purchased another 1 GB RAM module. However there seems to be no performance gain in applications like Adobe After Effects or Alias Maya.
Problem 2) Is it a good idea to upgrade my graphics card? Will this result in any performance improvement in After Effects or Maya?
Problem 3) If I do buy a new graphics card can i use the old one as well. The A8N-E motherboard manual speaks of a Universal PCI-E slot that can accomodate another PCI-E card (like a graphics card). Is this possible?